Name
Via:
Synopsis
The
Via:
header is not defined by RFC2822 but
occasionally appears in mail messages that
sendmail needs to process. It is used by a few
other networks to mark a mail message’s transit
through a forwarding host. It is an early, and now obsolete, version
of the Received:
header. The
sendmail program counts the
Via:
header when determining the hop count but has
no other use for it.
The Via:
header should never be declared in the
configuration file.
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